The small collection of lava‐flows, bombs, and ashes from Parícutin, which are to be briefly described, was obtained from several sources and is far from being as completely representative of the volcanic history of the region as one might wish. Until, however, an adequate study is made, these specimens may serve to give some idea of the broader aspects of the local petrography. Each of the 17 specimens is numbered in the text, and in Table 1 is given the name of the collector and the place and date the rock was collected.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i004p00618","usgsCitation":"Milton, C., 1944, Notes on volcanic rocks from Parícutin, Mexico: Eos, Transactions, American Geophysical Union, v. 25, no. 4, p. 618-621, https://doi.org/10.1029/TR025i004p00618.","productDescription":"4 p.","startPage":"618","endPage":"621","costCenters":[],"links":[{"id":379314,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico","state":"Michoacán","otherGeospatial":"Parícutin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -102.491455078125,\n 19.20742852680121\n ],\n [\n -102.09320068359375,\n 19.20742852680121\n ],\n [\n -102.09320068359375,\n 19.676211792974332\n ],\n [\n -102.491455078125,\n 19.676211792974332\n ],\n [\n -102.491455078125,\n 19.20742852680121\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"25","issue":"4","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Milton, Charles","contributorId":13616,"corporation":false,"usgs":true,"family":"Milton","given":"Charles","email":"","affiliations":[],"preferred":false,"id":801205,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215208,"text":"70215208 - 1944 - The influence of grain‐selection on the meaning of quartz‐diagrams","interactions":[],"lastModifiedDate":"2020-10-12T17:23:03.820519","indexId":"70215208","displayToPublicDate":"1944-10-12T12:10:30","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"The influence of grain‐selection on the meaning of quartz‐diagrams","docAbstract":"The most important factor which would reduce confusion in fabric analyses is the expanded use of partial diagrams. The purpose of this paper is to stress the significance of partial diagrams in a consideration of some confusing aspects of petrofabrics.
Any statistical study results in the accumulation of a mass of detail. In quartz‐fabric analyses the detail consists of the measuring and plotting of thousands of quartz‐axes; in an analysis of joints it consists of the measuring and plotting of thousands of joint‐attitudes. In each case limiting factors are required to give meaning to the accumulated data. The study of joints, to be significant, must be confined to an area with well‐integrated structural features. In quartz‐fabric studies discrimination between grain‐types is essential to the development of interpretable diagrams.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i004p00653","usgsCitation":"Fellows, R.E., 1944, The influence of grain‐selection on the meaning of quartz‐diagrams: Eos, Transactions, American Geophysical Union, v. 25, no. 4, p. 653-659, https://doi.org/10.1029/TR025i004p00653.","productDescription":"7 p.","startPage":"653","endPage":"659","costCenters":[],"links":[{"id":379310,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"4","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Fellows, Robert E.","contributorId":71612,"corporation":false,"usgs":true,"family":"Fellows","given":"Robert","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":801203,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215207,"text":"70215207 - 1944 - Report of Committee on Ground Water, 1943–44","interactions":[],"lastModifiedDate":"2020-10-12T17:06:12.344814","indexId":"70215207","displayToPublicDate":"1944-10-12T11:54:01","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Report of Committee on Ground Water, 1943–44","docAbstract":"The Chairman extends an apology to G. W. MUSGRAVE for omission of his name from the list of members given in the report of the Committee on Ground Water for 1942–43.
The response from members of the Committee in general has been very gratifying and is much appreciated. Four new members, Messrs. H. F. BLANEY, EDWARD BURWELL, Jr., A. N. SAYRE and V. T. STRINGFIELD have been added to the Committee this year, in order to effect better technical and geographic coverage.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i005p00712-2","usgsCitation":"Lohman, S.W., Blaney, H., Bretz, J.H., Burwell, E., Fishel, V., Gardner, W., Howard, C.S., Musgrave, G., Piper, A.M., Rose, N., Sayre, A., Stearns, H., and Stringfield, V.T., 1944, Report of Committee on Ground Water, 1943–44: Eos, Transactions, American Geophysical Union, v. 25, no. 5, p. 712-721, https://doi.org/10.1029/TR025i005p00712-2.","productDescription":"10 p.","startPage":"712","endPage":"721","costCenters":[],"links":[{"id":379309,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Lohman, S. W.","contributorId":45318,"corporation":false,"usgs":true,"family":"Lohman","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":801190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blaney, H.F.","contributorId":242955,"corporation":false,"usgs":false,"family":"Blaney","given":"H.F.","email":"","affiliations":[],"preferred":false,"id":801191,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bretz, J. Harlan","contributorId":242956,"corporation":false,"usgs":false,"family":"Bretz","given":"J.","email":"","middleInitial":"Harlan","affiliations":[],"preferred":false,"id":801192,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burwell, Edward Jr.","contributorId":242957,"corporation":false,"usgs":false,"family":"Burwell","given":"Edward","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":801193,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fishel, V.C.","contributorId":6126,"corporation":false,"usgs":true,"family":"Fishel","given":"V.C.","email":"","affiliations":[],"preferred":false,"id":801194,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gardner, Willard","contributorId":242958,"corporation":false,"usgs":false,"family":"Gardner","given":"Willard","email":"","affiliations":[],"preferred":false,"id":801195,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Howard, C. S.","contributorId":73180,"corporation":false,"usgs":true,"family":"Howard","given":"C.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":801196,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Musgrave, G.W.","contributorId":242959,"corporation":false,"usgs":false,"family":"Musgrave","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":801197,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Piper, A. M.","contributorId":102865,"corporation":false,"usgs":true,"family":"Piper","given":"A.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":801198,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Rose, N.A.","contributorId":97081,"corporation":false,"usgs":true,"family":"Rose","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":801199,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Sayre, A.N.","contributorId":84339,"corporation":false,"usgs":true,"family":"Sayre","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":801200,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Stearns, H.T.","contributorId":242960,"corporation":false,"usgs":false,"family":"Stearns","given":"H.T.","affiliations":[],"preferred":false,"id":801201,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Stringfield, V. T.","contributorId":72369,"corporation":false,"usgs":true,"family":"Stringfield","given":"V.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":801202,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70215206,"text":"70215206 - 1944 - Appendix F—Ground‐water studies in Central America","interactions":[],"lastModifiedDate":"2020-10-13T23:01:22.945883","indexId":"70215206","displayToPublicDate":"1944-10-12T11:46:00","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Appendix F—Ground‐water studies in Central America","docAbstract":"In June, 1943, the United States Geological Survey assigned two ground‐water geologists, A. N. SAYRE and G. C. TAYLOR, Jr., to study water‐supply problems in Central America for the Coordinator of Inter‐American Affairs and to make recommendations for remedial measures to provide water for cities and towns, especially along the Inter‐American Highway. El Salvador, where a large number of towns along the highway have serious water‐shortages during the six‐month dry season from December to June, was selected as the country in which most of the work was to be done. The Direccion de Sanidad de Salvador, through its Director, Dr. V. A. SUTTER, provided a list of some 35 cities which suffered the most serious water‐shortages and each of these cities was visited. The geological and ground‐water conditions in the vicinity were studied by reconnaissance‐methods and remedial measures were recommended. In nearly every case the water‐shortage was due in large part to improper or incomplete development of the available supplies. Most municipalities obtained their water‐supplies from springs which either had inadequate flow or were improperly developed. In a few cases the spring‐flow was adequate but a large quantity of water was wasted either through poor distribution‐systems or through breaks in the line that conducted water from the spring to the city. Nearly all of the water works were unsanitary. In most places it appeared likely that adequate supplies can be obtained from wells at relatively shallow depth. In some places adequate supplies can be obtained by proper improvements of springs that are now in use. In a very few cases no remedy for the shortage of water could be suggested.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i005p00724-2","usgsCitation":"Sayre, A., 1944, Appendix F—Ground‐water studies in Central America: Eos, Transactions, American Geophysical Union, v. 25, no. 5, p. 724-725, https://doi.org/10.1029/TR025i005p00724-2.","productDescription":"2 p.","startPage":"724","endPage":"725","costCenters":[],"links":[{"id":379308,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"El Salvador","otherGeospatial":"Central America","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -87.637939453125,\n 13.432366575813761\n ],\n [\n -89.637451171875,\n 14.551684056143447\n ],\n [\n -90.208740234375,\n 13.848747147537152\n ],\n [\n -88.077392578125,\n 13.165073873513025\n ],\n [\n -87.659912109375,\n 13.389619591747595\n ],\n [\n -87.637939453125,\n 13.432366575813761\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Sayre, A.N.","contributorId":84339,"corporation":false,"usgs":true,"family":"Sayre","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":801189,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215119,"text":"70215119 - 1944 - Appendix B—The work of the United States Geological Survey and cooperating agencies on ground water for war purposes","interactions":[],"lastModifiedDate":"2020-10-07T19:31:23.884263","indexId":"70215119","displayToPublicDate":"1944-10-07T14:13:40","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Appendix B—The work of the United States Geological Survey and cooperating agencies on ground water for war purposes","docAbstract":"A report by O. E. MEINZER, published as Appendix B of the annual report of the Committee for 1942–43 [Trans. Amer. Geophys. Union, Part II, pp. 418–420, 1943], describes in some detail the previous work of the United States Geological Survey and cooperating agencies on ground water for war purposes.
The geologists from the staff of the Geological Survey listed in that report and several other ground‐water geologists have served in the Army during the past year on water‐supply assignments. Only sketchy and unofficial information is as yet available concerning the activities of these geologists, but it is believed that they are now all engaged in overseas theaters of warfare and that their services in water‐supply and other technical work are of substantial value. In this service they have been supported by ground‐water maps and reports furnished by the Geological Survey for the different theaters.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i005p00722","usgsCitation":"Meinzer, O.E., 1944, Appendix B—The work of the United States Geological Survey and cooperating agencies on ground water for war purposes: Eos, Transactions, American Geophysical Union, v. 25, no. 5, p. 722-723, https://doi.org/10.1029/TR025i005p00722.","productDescription":"2 p.","startPage":"722","endPage":"723","costCenters":[],"links":[{"id":379193,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Meinzer, O. E.","contributorId":10020,"corporation":false,"usgs":true,"family":"Meinzer","given":"O.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":800920,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215118,"text":"70215118 - 1944 - Appendix A—Progress report of the subcommittee on permeability","interactions":[],"lastModifiedDate":"2020-10-07T19:13:02.088882","indexId":"70215118","displayToPublicDate":"1944-10-07T14:00:51","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Appendix A—Progress report of the subcommittee on permeability","docAbstract":"A variety of units and names of units relating to permeability have been used and are being used by different investigators. This Sub‐Committee was recently organized to provide an open forum for persons of different background and experience to present their views in an orderly manner. Thirteen members representing diverse fields of activity have been chosen. To these, L. K. WENZEL, Chairman, by memorandum dated December 2, 1943, proposed three questions for consideration as an initial effort of the Sub‐Committee: (1) Should the coefficient of permeability depend only on the structure of the material, or should some other name be used to express this property in view of the fact that, as now generally used, the coefficient of permeability is not independent of properties of the fluid or the combined properties of the fluid and the material; (2) should a name be coined, or is there a suitable one in existence, for expressing the combined properties of the material and fluid for practical application in one local area; (3) what are the parameters that should be included in the equation of flow of fluids that relate only to the structure of the material.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i005p00721","usgsCitation":"Langbein, W., 1944, Appendix A—Progress report of the subcommittee on permeability: Eos, Transactions, American Geophysical Union, v. 25, no. 5, p. 721-722, https://doi.org/10.1029/TR025i005p00721.","productDescription":"2 p.","startPage":"721","endPage":"722","costCenters":[],"links":[{"id":379191,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Langbein, Walter B.","contributorId":98294,"corporation":false,"usgs":true,"family":"Langbein","given":"Walter B.","affiliations":[],"preferred":false,"id":800919,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215117,"text":"70215117 - 1944 - Report of Committee on the Chemistry of Natural Waters, 1943–44","interactions":[],"lastModifiedDate":"2020-10-07T19:00:21.132949","indexId":"70215117","displayToPublicDate":"1944-10-07T13:42:44","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Report of Committee on the Chemistry of Natural Waters, 1943–44","docAbstract":"No abstract available.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i005p00734-1","usgsCitation":"Howard, C.S., 1944, Report of Committee on the Chemistry of Natural Waters, 1943–44: Eos, Transactions, American Geophysical Union, v. 25, no. 5, p. 734-734, https://doi.org/10.1029/TR025i005p00734-1.","productDescription":"1 p.","startPage":"734","endPage":"734","costCenters":[],"links":[{"id":379190,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Howard, C. S.","contributorId":73180,"corporation":false,"usgs":true,"family":"Howard","given":"C.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":800918,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215116,"text":"70215116 - 1944 - Differences in basin‐characteristics as reflected by precipitation‐runoff relations in San Bernardino and Eastern San Gabriel Mountain drainages","interactions":[],"lastModifiedDate":"2020-10-07T18:42:11.50207","indexId":"70215116","displayToPublicDate":"1944-10-07T13:30:43","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Differences in basin‐characteristics as reflected by precipitation‐runoff relations in San Bernardino and Eastern San Gabriel Mountain drainages","docAbstract":"In interpretation and use of basic hydrological data as basis for planning any public works for conservation or control of water, there is great need for a careful and thorough analysis of the precipitation‐runoff relations. Moreover, when such relations may have been worked out for one particular basin, experience has shown that extreme caution must be used in any attempt to apply these relations to another basin even though superficially the latter may appear to be comparable with respect to physiography, meteorological conditions, and all of the other elements which contributed to the relations established for the first basin.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TR025i001p00021","usgsCitation":"Stafford, H., and Troxell, H., 1944, Differences in basin‐characteristics as reflected by precipitation‐runoff relations in San Bernardino and Eastern San Gabriel Mountain drainages: Eos, Transactions, American Geophysical Union, v. 25, no. 1, p. 21-35, https://doi.org/10.1029/TR025i001p00021.","productDescription":"15 p.","startPage":"21","endPage":"35","costCenters":[],"links":[{"id":379189,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Bernardino and Eastern San Gabriel Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.938232421875,\n 33.89321737944089\n ],\n [\n -116.54296874999999,\n 33.89321737944089\n ],\n [\n -116.54296874999999,\n 34.5020297944346\n ],\n [\n -117.938232421875,\n 34.5020297944346\n ],\n [\n -117.938232421875,\n 33.89321737944089\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"25","issue":"1","noUsgsAuthors":false,"publicationDate":"2014-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Stafford, H.M.","contributorId":36914,"corporation":false,"usgs":true,"family":"Stafford","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":800916,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Troxell, H.C.","contributorId":69124,"corporation":false,"usgs":true,"family":"Troxell","given":"H.C.","email":"","affiliations":[],"preferred":false,"id":800917,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70215115,"text":"70215115 - 1944 - The differentiation of magnesite from dolomite in concentrates and tailings","interactions":[],"lastModifiedDate":"2021-04-07T13:46:17.949359","indexId":"70215115","displayToPublicDate":"1944-10-07T13:12:08","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"The differentiation of magnesite from dolomite in concentrates and tailings","docAbstract":"A new method is presented here for differentiating magnesite from dolomite in crushed materials. This method is based on the essentially different temperatures at which these minerals undergo thermal decomposition. The resulting lowly birefringent periclase is easily distinguished microscopically from the highly birefringent dolomite. This method is based on the ease of recognition of the periclase which permits rapid counting and gives reliable quantitative data on mineral composition. A method is given for staining thermally treated specimens for the determination of the distribution of these minerals in rock fragments.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.39.2.142","usgsCitation":"Faust, G., 1944, The differentiation of magnesite from dolomite in concentrates and tailings: Economic Geology, v. 39, no. 2, p. 142-151, https://doi.org/10.2113/gsecongeo.39.2.142.","productDescription":"11 p.","startPage":"142","endPage":"151","costCenters":[],"links":[{"id":379188,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"2","noUsgsAuthors":false,"publicationDate":"1944-03-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Faust, George T.","contributorId":15186,"corporation":false,"usgs":true,"family":"Faust","given":"George T.","affiliations":[],"preferred":false,"id":800915,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215114,"text":"70215114 - 1944 - The fluorspar deposits of Saint Lawrence, Newfoundland","interactions":[],"lastModifiedDate":"2020-10-07T18:11:32.300188","indexId":"70215114","displayToPublicDate":"1944-10-07T12:58:23","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"The fluorspar deposits of Saint Lawrence, Newfoundland","docAbstract":"Fluorspar from Newfoundland, eighth ranking producer of the world, comes entirely from the St. Lawrence district. Here pre-Cambrian lavas and pyroclastics, Cambrian sedimentary rocks, Ordovician (?) volcanic and sedimentary rocks, and a Paleozoic alaskite-granite comprise the bedrock.Epithermal fluorite veins occupy steeply dipping fault fissures in granite, rhyolite porphyry, and lamprophyre. Eleven veins show walls bearing nearly horizontal striations; one vein bears only vertical striations; and the walls of three veins show both horizontal and vertical striations. The strikes of nearly all veins are within 45 degrees of the normal to the walls of the elongated granite mass. Some veins are more than a mile long and contain numerous workable lenses. Veins are of two types: high-grade containing over 95 per cent CaF 2 and averaging about 5 feet thick, and lower grade containing about 75 per cent CaF 2 and averaging between 15 and 20 feet thick.Sulphides, present in small quantities, include pyrite, chalcopyrite, sphalerite, and argentiferous galena. Non-metallic gangue minerals are quartz, calcite, and rarely barite. \"Blastonite,\" a local name for material composed of microcrystalline quartz and brecciated fluorite, in some places forms as much as 10 per cent of a vein. A nodular type of fluorspar probably formed by alternate rotation of fragments of breccia and deposition of fluorite.Regional zoning is shown by the distribution of barite and green fluorite. Barite shows a distinct zone of localization, and green fluorite predominates in veins both near the granite margins and farther from the granite body.This district will undoubtedly occupy a still more prominent position among producers of fluorspar.
","language":"English","publisher":"Society of Economic Geologist","doi":"10.2113/gsecongeo.39.2.109","usgsCitation":"Van Alstine, R.E., 1944, The fluorspar deposits of Saint Lawrence, Newfoundland: Economic Geology, v. 39, no. 2, p. 109-132, https://doi.org/10.2113/gsecongeo.39.2.109.","productDescription":"24 p.","startPage":"109","endPage":"132","costCenters":[],"links":[{"id":379187,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Newfoundland","otherGeospatial":"Saint Lawrence","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -56.129150390625,\n 46.79253827035982\n ],\n [\n -54.86572265625,\n 46.79253827035982\n ],\n [\n -54.86572265625,\n 47.34626718205302\n ],\n [\n -56.129150390625,\n 47.34626718205302\n ],\n [\n -56.129150390625,\n 46.79253827035982\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"39","issue":"2","noUsgsAuthors":false,"publicationDate":"1944-03-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Van Alstine, Ralph Erskine","contributorId":12472,"corporation":false,"usgs":true,"family":"Van Alstine","given":"Ralph","email":"","middleInitial":"Erskine","affiliations":[],"preferred":false,"id":800914,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215113,"text":"70215113 - 1944 - \"Ribbon rock\", an unusual beryllium-bearing tactite","interactions":[],"lastModifiedDate":"2020-10-07T17:58:01.532012","indexId":"70215113","displayToPublicDate":"1944-10-07T12:44:53","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"\"Ribbon rock\", an unusual beryllium-bearing tactite","docAbstract":"The beryllium deposits at Iron Mountain, near the northern end of the Sierra Cuchillo in Sierra and Socorro Counties, New Mexico, are unusual products of contact metamorphism. They occur in irregular bodies of tactile formed by replacement of Paleozoic limestone, generally at or near contacts with small intrusive masses of rhyolite, aplite, and fine-grained granite. The metamorphism took place in mid-Tertiary time. Beryllium is present chiefly in the complex silicate minerals helvite and danalite, and is a minor constituent of the garnet grossularite, a boron-bearing idocrase, and chlorite. These minerals are known to occur in noteworthy concentrations in only one type of rock, a peculiar rhythmically layered variety of tactile to which the name \"ribbon rock\" is given.
The structure of such tactite is very conspicuous, and appears in section as thin, finely crenulated bands of magnetite alternating with similar bands of silicate minerals and finely crystalline fluorite. Concentric banding about fluorite-rich pod-like masses is common. Bodies of \"ribbon rock\" range in size from inch-thick lenses to large masses amounting to thousands of tons; most appear to have been formed along contacts between re-crystallized limestone and massive magnetite-andradite tactite, chiefly by replacing fluids penetrating the limestone from fractures. The layered structure is interpreted as a diffusion effect.The formation of massive and \"ribbon rock\" tactites can be traced through a range of falling temperature from a stage characterized by deposition from iron-rich vapors to a stage in which hydrothermal solutions were dominant. Both vapors and liquids appear to have been acid. Reducing conditions undoubtedly existed during the latter part of the hydrothermal stage. The occurrence of beryllium in \"ribbon rock,\" but not in typical massive tactite, may signify that its compounds in deposits at or near intrusive contacts are confined to rocks of hydrothermal origin. The occurrence of \"ribbon rock\" is suggested as a potentially useful clue for recognition of beryllium-bearing contact deposits elsewhere; at least two other occurrences of what apparently is \"ribbon rock\" have been described in the literature.
","language":"English","publisher":"Society of Economic Geologist","doi":"10.2113/gsecongeo.39.3.173","usgsCitation":"Jahns, R.H., 1944, \"Ribbon rock\", an unusual beryllium-bearing tactite: Economic Geology, v. 39, no. 3, p. 173-205, https://doi.org/10.2113/gsecongeo.39.3.173.","productDescription":"33 p.","startPage":"173","endPage":"205","costCenters":[],"links":[{"id":379186,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","otherGeospatial":"Iron Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -108.47351074218749,\n 31.31140838620163\n ],\n [\n -106.50146484374999,\n 31.31140838620163\n ],\n [\n -106.50146484374999,\n 33.66492516885242\n ],\n [\n -108.47351074218749,\n 33.66492516885242\n ],\n [\n -108.47351074218749,\n 31.31140838620163\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"39","issue":"3","noUsgsAuthors":false,"publicationDate":"1944-05-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Jahns, R. H.","contributorId":97961,"corporation":false,"usgs":true,"family":"Jahns","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":800913,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215112,"text":"70215112 - 1944 - Variations in chemical composition of Los Angeles Basin ground waters","interactions":[],"lastModifiedDate":"2020-10-07T17:43:51.983044","indexId":"70215112","displayToPublicDate":"1944-10-07T12:30:14","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Variations in chemical composition of Los Angeles Basin ground waters","docAbstract":"No abstract available.
","language":"English","publisher":"Society of Economic Geologist","doi":"10.2113/gsecongeo.39.4.315","usgsCitation":"Poland, J.F., 1944, Variations in chemical composition of Los Angeles Basin ground waters: Economic Geology, v. 39, no. 4, p. 315-318, https://doi.org/10.2113/gsecongeo.39.4.315.","productDescription":"4 p.","startPage":"315","endPage":"318","costCenters":[],"links":[{"id":379185,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Los Angeles","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -118.6248779296875,\n 33.5459730276919\n ],\n [\n -117.520751953125,\n 33.5459730276919\n ],\n [\n -117.520751953125,\n 34.288991865037524\n ],\n [\n -118.6248779296875,\n 34.288991865037524\n ],\n [\n -118.6248779296875,\n 33.5459730276919\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"39","issue":"4","noUsgsAuthors":false,"publicationDate":"1944-06-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Poland, J. F.","contributorId":64223,"corporation":false,"usgs":true,"family":"Poland","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":800912,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70215111,"text":"70215111 - 1944 - Celestite in Buffalo Cove, Fentress County, Tennessee","interactions":[],"lastModifiedDate":"2021-04-06T15:58:30.892402","indexId":"70215111","displayToPublicDate":"1944-10-07T12:19:41","publicationYear":"1944","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Celestite in Buffalo Cove, Fentress County, Tennessee","docAbstract":"Mineral aggregates consisting of celestite, dolomite, calcite, and very small amounts of sphalerite, anhydrite, and pyrite occur in the uppermost beds of the Glen Dean limestone, of upper Mississippian age, which crops out along the slopes of Buffalo Cove. Proportions of minerals range widely in adjacent aggregates; maximum content of strontium sulphate is about 96 per cent. The aggregates are spherical to nearly flat, and are regular to irregular in outline; a few coalesce. The maximum dimensions of those examined range from 0.04 to 1.35 feet, and their known vertical range in the Glen Dean limestone is from 7 to 20 feet or more downward from the contact with the overlying Pennington shale. The aggregates in the uppermost beds commonly contain chert and are somewhat hollowed as a result of weathering. Those in the lower beds contain no chert, and, where unweathered, no cavities. Celestite also occurs as isolated crystals and groups of crystals embedded in the limestone. The limetone is fine-grained, brownish gray, argillaceous, and un-fractured. The isolated crystals probably were precipitated from connate water as the limestone consolidated. During subsequent erosion of the Pennington shale to a level only 200 feet above the Glen Dean limestone, meteoric water probably gained access to the upper Glen Dean beds and dissolved cavities in them. The dense, unjointed limestone prevented downward percolation of the water, which became saturated with strontium sulphate and calcium carbonate, and deposited celestite and calcite in the solution cavities. As the dolomite in the aggregates has no apparent local source, it is believed to have been introduced from depth, probably with the small amounts of sphalerite and pyrite, by hydrothermal solutions in post-Mississippian time. Although no veins were seen in the few exposures examined around the cove, it is inferred by analogy with other mineralized areas that the solutions rose along fissures and were deflected by the overlying shale, spreading laterally through the partly filled cavities in the limestone without impregnating the limestone itself. Meteoric water still present in the cavities probably promoted deposition without attack on the limestone by lowering the temperature of the solutions.The celestite zone is being developed at the Youngs quarry. Reserves in the block of ground that contains the quarry are estimated to be 2,822 tons of the mineral aggregates, or strontium ore, containing 2,148 tons of celestite. The celestite constitutes 5.89 per cent by weight of the combined rock and aggregates in the block. Four out of seven exposures examined elsewhere in the ore zone suggest that other roughly comparable blocks may be developed. Underground quarrying is not practicable because of the overlying shale, but a dozen or more similar open quarry sites might be found on the divides between the numerous ravines that drain the sides of the cove.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.39.4.287","usgsCitation":"Kesler, T.L., 1944, Celestite in Buffalo Cove, Fentress County, Tennessee: Economic Geology, v. 39, no. 4, p. 287-306, https://doi.org/10.2113/gsecongeo.39.4.287.","productDescription":"20 p.","startPage":"287","endPage":"306","costCenters":[],"links":[{"id":379184,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Tennessee","county":"Fentress","otherGeospatial":"Buffalo Cove","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-84.7322,36.525],[-84.7138,36.4957],[-84.7013,36.4589],[-84.6926,36.4356],[-84.6898,36.4315],[-84.6842,36.4251],[-84.6836,36.4242],[-84.6679,36.4063],[-84.6618,36.3977],[-84.6595,36.3949],[-84.6859,36.3884],[-84.6906,36.3835],[-84.6896,36.3762],[-84.6908,36.3744],[-84.7011,36.3709],[-84.7034,36.3695],[-84.7051,36.3682],[-84.7097,36.3683],[-84.7131,36.3706],[-84.7216,36.3761],[-84.7244,36.3766],[-84.725,36.3752],[-84.7228,36.3702],[-84.7303,36.3689],[-84.7327,36.3635],[-84.7322,36.3567],[-84.7265,36.3539],[-84.7283,36.3512],[-84.7317,36.3508],[-84.734,36.3504],[-84.7408,36.3541],[-84.7425,36.3541],[-84.7443,36.35],[-84.7405,36.3409],[-84.7394,36.3368],[-84.7474,36.3346],[-84.7497,36.3333],[-84.7537,36.3342],[-84.756,36.3343],[-84.7595,36.3311],[-84.7623,36.3307],[-84.7686,36.3339],[-84.7731,36.3349],[-84.7743,36.3344],[-84.7749,36.3299],[-84.7778,36.3268],[-84.7858,36.326],[-84.7864,36.3246],[-84.7854,36.3191],[-84.7918,36.3124],[-84.7919,36.3024],[-84.7943,36.2988],[-84.8023,36.2975],[-84.808,36.2958],[-84.8138,36.294],[-84.8171,36.2977],[-84.8234,36.2987],[-84.8332,36.292],[-84.8413,36.287],[-84.8543,36.2917],[-84.8646,36.2936],[-84.872,36.2896],[-84.8773,36.2819],[-84.8792,36.2679],[-84.8816,36.2593],[-84.8829,36.248],[-84.8842,36.2416],[-84.8876,36.2403],[-84.8905,36.2385],[-84.8918,36.2276],[-84.8936,36.224],[-84.8987,36.2227],[-84.9033,36.22],[-84.9114,36.2124],[-84.9126,36.2083],[-84.9082,36.196],[-84.91,36.1897],[-84.9078,36.1851],[-84.9005,36.1765],[-84.9018,36.1656],[-84.9059,36.157],[-84.9174,36.1512],[-84.9237,36.149],[-84.93,36.1463],[-84.9345,36.1486],[-84.9385,36.1523],[-84.9487,36.1529],[-84.9562,36.1516],[-84.9607,36.1521],[-84.9658,36.1584],[-84.9697,36.1603],[-84.9823,36.159],[-84.9896,36.1614],[-84.9948,36.1587],[-84.9977,36.1519],[-85.0017,36.1533],[-85.0068,36.1579],[-85.0125,36.1593],[-85.0187,36.1639],[-85.0232,36.1662],[-85.0294,36.1717],[-85.0323,36.1681],[-85.0341,36.164],[-85.0386,36.1663],[-85.041,36.1591],[-85.0473,36.1514],[-85.0507,36.1528],[-85.0576,36.1515],[-85.0656,36.1502],[-85.0657,36.1447],[-85.0674,36.1416],[-85.0737,36.1407],[-85.08,36.1385],[-85.0817,36.1331],[-85.1022,36.1391],[-85.1192,36.1447],[-85.0827,36.1961],[-85.1109,36.2676],[-85.1225,36.3053],[-85.1178,36.4096],[-85.103,36.4099],[-85.0887,36.5001],[-85.0771,36.5168],[-85.0701,36.524],[-85.0649,36.528],[-85.05,36.5252],[-85.0459,36.5315],[-85.0441,36.5396],[-85.0469,36.5442],[-85.0503,36.5474],[-85.0503,36.5524],[-85.0468,36.5542],[-85.0422,36.5564],[-85.0388,36.5541],[-85.029,36.5558],[-85.0244,36.5603],[-85.0198,36.5598],[-85.0129,36.5657],[-85.0117,36.5689],[-85.0134,36.5702],[-85.011,36.5738],[-85.0065,36.5715],[-84.9956,36.5674],[-84.9887,36.5728],[-84.9818,36.5754],[-84.9645,36.5802],[-84.9427,36.5814],[-84.9181,36.5807],[-84.8935,36.5769],[-84.8895,36.576],[-84.8747,36.5736],[-84.8627,36.5698],[-84.8485,36.5638],[-84.8183,36.5503],[-84.7956,36.5333],[-84.7951,36.5329],[-84.794,36.532],[-84.7849,36.5255],[-84.7775,36.525],[-84.7322,36.525]]]},\"properties\":{\"name\":\"Fentress\",\"state\":\"TN\"}}]}","volume":"39","issue":"4","noUsgsAuthors":false,"publicationDate":"1944-06-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Kesler, T. L.","contributorId":84438,"corporation":false,"usgs":true,"family":"Kesler","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":800911,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":37950,"text":"37950 - 1944 - Raising martens in captivity","interactions":[],"lastModifiedDate":"2014-07-17T14:16:49","indexId":"37950","displayToPublicDate":"1944-10-01T14:16:14","publicationYear":"1944","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":98,"text":"Wildlife Leaflet","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"243","title":"Raising martens in captivity","docAbstract":"No abstract available.","language":"English","publisher":"U.S. Department of the Interior","publisherLocation":"Chicago, IL","collaboration":"Prepared in Fur Resources, Division of Wildlife Research.","usgsCitation":"U.S. Fish and Wildlife Service, 1944, Raising martens in captivity (Revises and updates Wildlife Leaflet BS-63 (1936).): Wildlife Leaflet 243, 3 p.","productDescription":"3 p.","numberOfPages":"3","costCenters":[],"links":[{"id":290384,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"edition":"Revises and updates Wildlife Leaflet BS-63 (1936).","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6f21e4b0b29085106360","contributors":{"authors":[{"text":"U.S. Fish and Wildlife Service","contributorId":128143,"corporation":true,"usgs":false,"organization":"U.S. Fish and Wildlife Service","id":529780,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70231174,"text":"tei4 - 1944 - Preliminary report on a trace elements reconnaissance in western states","interactions":[],"lastModifiedDate":"2022-05-02T15:44:58.724216","indexId":"tei4","displayToPublicDate":"1944-10-01T10:32:50","publicationYear":"1944","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":337,"text":"Trace Elements Investigations","code":"TEI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"4","title":"Preliminary report on a trace elements reconnaissance in western states","docAbstract":"No abstract available.
","language":"English","publisher":"U. S. 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Terrain intelligence: Strategic Engineering Study 108, 28 p.","productDescription":"28 p.","numberOfPages":"30","costCenters":[],"links":[{"id":284836,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70095524/report.pdf"},{"id":283354,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/70095524.JPG"}],"country":"Micronesia","otherGeospatial":"Kosrae","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 162.895607,5.259866 ], [ 162.895607,5.369902 ], [ 163.034041,5.369902 ], [ 163.034041,5.259866 ], [ 162.895607,5.259866 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"535594a8e4b0120853e8c039","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535633,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70268044,"text":"70268044 - 1944 - The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944","interactions":[{"subject":{"id":70268044,"text":"70268044 - 1944 - The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944","indexId":"70268044","publicationYear":"1944","noYear":false,"title":"The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944"},"predicate":"IS_PART_OF","object":{"id":70246900,"text":"70246900 - 1925 - The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association","indexId":"70246900","publicationYear":"1925","noYear":false,"title":"The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association"},"id":1}],"isPartOf":{"id":70246900,"text":"70246900 - 1925 - The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association","indexId":"70246900","publicationYear":"1925","noYear":false,"title":"The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association"},"lastModifiedDate":"2025-06-20T15:48:59.420672","indexId":"70268044","displayToPublicDate":"1944-01-01T12:35:14","publicationYear":"1944","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944","docAbstract":"The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included.
The Volcano Letter was published by HVO through multiple changes in administration, including the Hawaiian Volcano Research Association (1925 to 1932), the U.S. Geological Survey (1932 to 1935), the Department of the Interior (1935 to 1938), and the University of Hawai‘i (1938 to 1955). Issues 1-262 were published weekly from January 1, 1925, to January 2, 1930, and consisted of a single page of text. Issues 263-384, also published weekly, from January 9, 1930, to May 5, 1932, were generally longer—four pages— and provided more detail on volcanic activity, including photographs, maps, and plots. Weekly issues 385-387, published May 12-26, 1932, were a single page of text due to budget reductions brought on by the Great Depression. Budget restrictions reduced the publishing frequency to monthly for issues 388-428, covering the period of June 1932 to October 1935; these issues were generally shorter, 1-2 pages, and sometimes featured figures. From November 1935 to July 1938, issues 429-461 remained monthly but increased in length (generally eight pages) and featured figures frequently. Issues 462-530, published over the period of August 1938 to December 1955, varied in length from 2-15 pages, but were published quarterly, rather than monthly.
Six of the Volcano Letters are misnumbered:
Jan. 21, 1926 number is 55 though it should 56
July 29, 1926 number is 82 though it should be 83
Feb. 16, 1928 number is 161 though it should be 164
May 31, 1928 number is 197 though it should be 179
Nov. 29, 1928 number is 204 though it should be 205